Higher gate capacitance of FETs is also a drawback. Often you need a bjt or even dedicated gate-driver IC to drive the gates quickly. The extra pole can also make negative feedback more complicated. And there's less component choice when you want more control in the ohmic region versus switching - for a non emitter/source follower circuit. Another issue is the higher gate voltages required - compared with bjts even using logic-level FETs.

The article would have been much better with a different title - "How to use FETs effectively and when to use them", not a binary oppositioning of "antique" versus "modern".